This week's book giveaway is in the Reactive Progamming forum. We're giving away four copies of Reactive Streams in Java: Concurrency with RxJava, Reactor, and Akka Streams and have Adam Davis on-line! See this thread for details.
I'm having an issue on my local data center where we have ten JVMs running a critical application we will call X. X has millions of users a month and thousands of concurrent users a day. If there is an exception our developers are having to trace through ten different massive JVM log files to find the root cause (log files are rotated hourly). We have some monitoring tools in place, but I wanted all of your input on any excellent open source tools that can aggregate log files together?
Are these actual JVM core dump logs? Or application logs that the application developers have configured? If secondary then a somewhat venerable but still useful tool called Chainsaw can help you filter log4j based logs.